compose2D         177 libavfilter/vf_owdenoise.c     compose2D(temp[0],  src[0],  src[1], linesize, 1, step, h, w);
compose2D         178 libavfilter/vf_owdenoise.c     compose2D(temp[1],  src[2],  src[3], linesize, 1, step, h, w);
compose2D         179 libavfilter/vf_owdenoise.c     compose2D(dst,     temp[0], temp[1], 1, linesize, step, w, h);